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Suzuki, S., Matsui, T., Kawahara, H., Ichiki, H., Shimizu, J., Kondo, Y., Gotoh, S., Yura, H., Takase, B. and Ishihara, M. (2009) A Non-Contact Vital Sign Monitoring System for Ambulances Using Dual-Frequency Microwave Radars. Medical and Biological Engineering and Computing, 47, 101-105.
https://doi.org/10.1007/s11517-008-0408-x

has been cited by the following article:

• TITLE: Assessment of Non-Contact Measurement Using a Microwave Sensor to Jugular Venous Pulse Monitoring

  AUTHORS: Satoshi Suzuki, Masaaki Hoshiga, Kentaro Kotani, Takafumi Asao

  KEYWORDS: Microwave Radar, Non-Contact Monitoring, Jugular Venous Pressure, Right Heart Function

  JOURNAL NAME: Journal of Biomedical Science and Engineering, Vol.14 No.3, March 10, 2021

  ABSTRACT: The jugular venous pulse (JVP) waveform provides an insight into right heart function, and its assessment is important in patients with heart failure. However, the conventional pulse-transducer (contact) method for monitoring this waveform is not frequently used because it requires a high degree of skill. The aim of this study was to confirm the effectiveness of a prototype non-contact system that employs microwave radar (24 GHz, 7 mW; non-contact system) for JVP measurement. Experiments were conducted on eight healthy male volunteers (21.88 ± 0.99 years). JVP measurements were compared between the conventional contact method and the proposed non-contact method. Change in JVP waveform was measured in response to an angle of reclining in five steps from the supine position to 75° of elevation. The obtained JVP measurements were similar between the two methods. Because in the non-contact method the faint pulsation of the JVP is not suppressed by the pressure of a sensor placed on the skin, the prototype microwave radar system is particularly suitable for evaluating the JVP waveform.